Table 1 Mechanical properties of healing tendons. Strain at 100 N for one year is calculated from regression line from all measurements. (Units: cm2, MPa, N/0.1 mm, % per 100 N)
6 weeks | 12 weeks | 18 weeks | 1 year | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
min | med | max | mean | min | med | max | mean | min | med | max | mean | min | med | max | mean | |
Transv area | 0.9 | 1.5 | 2.8 | 1.7 | 1.3 | 2.7 | 3.4 | 2.6 | 1.5 | 3.2 | 4.2 | 3.0 | 1.8 | 2.3 | 2.9 | 2.3 |
Modulus | 28 | 85 | 130 | 76 | 56 | 95 | 340 | 130 | 60 | 110 | 440 | 170 | 240 | 310 | 1000 | 410 |
Stiffness | 11 | 21 | 36 | 22 | 19 | 43 | 103 | 55 | 29 | 63 | 207 | 81 | 68 | 134 | 319 | 143 |
Strain/force | 0.55 | 0.90 | 1.47 | 0.97 | 0.16 | 0.40 | 0.78 | 0.41 | 0.09 | 0.32 | 0.46 | 0.27 | 0.04 | 0.14 | 0.20 | 0.14 |